Pore water chemical and isotopic compositions from the West Philippine Basin, Ocean Drilling Program Site 1201

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doi: 10.2973/odp.proc.sr.195.110.2006
Author(s): Komor, Stephen C.; Mottl, Michael J.
Ocean Drilling Program, Leg 195, Shipboard Scientific Party, College Station, TX
Author Affiliation(s): Primary:
U. S. Geological Survey, Ithaca, NY, United States
Other:
Geological Survey of Canada, Canada
Ocean Drilling Program, United States
Japan Agency for Marine-Earth Science and Technology, Japan
University of Leicester, United Kingdom
Universita di Napoli "Federico II", Italy
University of Southampton, United Kingdom
Alfred Wegener Institute for Polar and Marine Research, Federal Republic of Germany
Rosenstiel School of Marine and Atmospheric Science, United States
University of Hawaii at Manoa, United States
ISTEEM, Laboratoire de Tectonophysique, France
University of Texas at Dallas, United States
University of Wisconsin at Madison, United States
University of Toronto at Scarborough, Canada
U. S. Geological Survey, United States
University of Aarhus, Denmark
Western Washington University, United States
University of South Florida, United States
China University of Geosciences, China
National Taiwan University, Taiwan
Volume Title: Proceedings of the Ocean Drilling Program; scientific results; seafloor observatories and the Kuroshio Current; covering Leg 195 of the cruises of the drilling vessel JOIDES Resolution; Apra Harbor, Guam, to Keelung, Taiwan; Sites 1200-1202; 2 March-2 May 2001
Volume Author(s): Shinohara, Masanao, editor; Salisbury, Matthew H.; Richter, Carl; Araki, Eiichiro; Barr, Samantha R.; D'Antonio, Massimo; Dean, Simon M.; Diekmann, Bernhard; Edwards, K. Michelle; Fryer, Patricia B.; Gaillot, Philippe J.; Hammon, William S., III; Hart, David; Januszczak, Nicole; Komor, Stephen C.; Kristensen, Mette B.; Lockwood, John P.; Mottl, Michael J.; Moyer, Craig L.; Nakahigashi, Kazuo; Savov, Ivan P.; Su Xin; Wei, Kuo-Yen; Yamada, Tomoaki
Source: Proceedings of the Ocean Drilling Program; scientific results; seafloor observatories and the Kuroshio Current; covering Leg 195 of the cruises of the drilling vessel JOIDES Resolution; Apra Harbor, Guam, to Keelung, Taiwan; Sites 1200-1202; 2 March-2 May 2001, Masanao Shinohara, Matthew H. Salisbury, Carl Richter, Eiichiro Araki, Samantha R. Barr, Massimo D'Antonio, Simon M. Dean, Bernhard Diekmann, K. Michelle Edwards, Patricia B. Fryer, Philippe J. Gaillot, William S. Hammon, III, David Hart, Nicole Januszczak, Stephen C. Komor, Mette B. Kristensen, John P. Lockwood, Michael J. Mottl, Craig L. Moyer, Kazuo Nakahigashi, Ivan P. Savov, Su Xin, Kuo-Yen Wei and Tomoaki Yamada; Ocean Drilling Program, Leg 195, Shipboard Scientific Party, College Station, TX. Proceedings of the Ocean Drilling Program, Scientific Results (CD ROM), Vol.195, 14p. Publisher: Texas A&M University, Ocean Drilling Program, College Station, TX, United States. ISSN: 1096-2514
Note: In English. Data report; available only on CD-ROM in PDF format and on the Web in PDF or HTML. 5 refs.CD-ROM, ISSN 1096-2514; WWW, ISSN 1096-7451; illus., incl. 2 tables, geol. sketch map
Summary: This report summarizes chemical and isotopic data from Ocean Drilling Program Leg 195 Site 1201. Pore water is divided into three intervals based on the rate of chemical change with depth. The shallowest interval is the red clay unit between 1.26 and 56.40 meters below seafloor (mbsf). In this section, there are overall decreases in the concentrations of alkalinity, boron, lithium, magnesium, potassium, sodium, and sulfate, whereas concentrations of calcium and chloride increase. Values of δ18O and δD plot near standard mean ocean water to the right of the global meteoric water line (GMWL). Five samples from 72.60 and 83.33 mbsf yielded pore water for analyses. These samples help define a trend in the second interval, which is between 56.4 and 238.98 mbsf. Here, concentrations of magnesium, potassium, sodium, and sulfate decease, whereas concentrations of boron, calcium, and chloride increase. Concentrations of alkalinity and lithium remain roughly constant. The deepest interval, between 238.04 and 504.8 mbsf, has comparatively slower decreases of sodium and sulfate, increases of calcium and chloride, slow increases of alkalinity and lithium, and roughly constant concentrations of magnesium, potassium, and boron. Values of δ18O and δD in pore water between 146.98 and 504.80 mbsf plot in a linear trend to the right of the GMWL.
Year of Publication: 2006
Research Program: ODP Ocean Drilling Program
Key Words: 02 Geochemistry; Alkalinity; C-13/C-12; Carbon; Chemical composition; Concentration; D/H; Geochemistry; Hydrochemistry; Hydrogen; Isotope ratios; Isotopes; Leg 195; North Pacific; Northwest Pacific; O-18/O-16; ODP Site 1201; Ocean Drilling Program; Oxygen; Pacific Ocean; Philippine Sea; Pore water; Sea water; Stable isotopes; West Pacific; West Philippine Basin
Coordinates: N191700 N191800 E1350600 E1350500
Record ID: 2006066609
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.